Division of Compensation Analysis and 

Support

Program Evaluation Report

Document Number: DCAS-PER-053

Effective Date: 3/4/2015

Revision No. 0

Allied Chemical Corporation Page 1 of 3

Author: Signature on file Date: 3/4/2015 

 Dave Allen, HP Team Leader

Approval: Signature on file Date: 3/4/2015

 J.W. Neton, Associate Director for Science

Supersedes: None

RECORD OF ISSUE/REVISIONS

ISSUE 

AUTHORIZATION 

DATE

3/4/2015

EFFECTIVE 

DATE

3/4/2015

REV. NO. 

0

DESCRIPTION

New document to determine the effect of 

a revision to the Allied Chemical

Corporation Plant TBD on previously 

completed claims.

1.0 Description

Revision 2 of the Technical Basis Document (TBD) for the Allied Chemical Corporation 

Plant (ORAUT-TKBS-0044) was issued on 4/28/2014. This PER considers the effect of 

the changes that were made in revision 2 on dose reconstructions that were completed 

using previous versions of the TBD.

 

2.0 Issue Evaluation

The revision to the Allied Chemical TBD includes several changes that would cause an 

increase in calculated doses. Because the changes cover all operational time periods and 

job types, no claims were excluded from further evaluation based on job types or 

employment period. Thus, a detailed listing of changes is not necessary. Some of the 

changes that occurred in the revision include:

- new guidance to assign adjacent year’s external dose if records are missing or 

incomplete;

- an increase in the mode of the unmonitored neutron dose estimate from 1959 to 

1976;

- a revision to ORAUT-OTIB-070 factors that increased doses in the residual 

period starting in 1977; and,

- a Change to the isotopic ratios for non-uranium radionuclide intakes during the 

residual period.
Division of Compensation Analysis and 

Support

Program Evaluation Plan

Document Number: DCAS-PER-053

Effective Date: 3/4/2015 Revision No. 0 Page 2 of 3

3.0 Plan for Resolution or Corrective Action

To develop of list of potentially affected claims, dose reconstruction reports were 

searched for the occurrence of the word “allied” anywhere in the text of the document. 

This searche resulted in a list of 205 claims.

58 claims were removed from this list because the previous dose reconstruction resulted 

in a probability of causation (POC) of 50% or greater.

Four claims were removed because the claim had been pulled from dose reconstruction or 

the latest dose reconstruction was completed using revision 2 of the TBD.

42 claims were removed because they did not have any employment at the site. These 

had been listed because the dose reconstruction report containing the word “allied,” but 

the word was not associated with this site. For example, 16 of these had employment at 

the Allied Chemical and Dye site. All but one of these claims were removed from the 

list. The one claim referenced a source term depletion factor from revision 1 of this TBD 

that was revised in revision 2. Therefore, this claim remained on the list for evaluation.

Four additional claims were removed from further evaluation because they meet the 

qualification criteria for the Allied Chemical SEC. The dose reconstructions had been 

done prior to the designation of the SEC. These claims were reviewed to insure no dose 

reconstruction was necessary for medical benefits.

The review process left 98 claims to be evaluated further. During this process, three 

claims were returned to NIOSH by DOL for a new dose reconstruction. Those dose 

reconstructions were performed using the revision 2 of the TBD so no further evaluation 

was necessary under this PER. 

Additionally, the dose for two more claims was not recalculated under this PER. One 

was found to qualify for an SEC at another facility so no dose reconstruction was 

necessary. The other had only a short employment period at Allied Chemical (2 weeks) 

but several years of employment at another EEOICPA facility. Claims from the other

facility are being evaluated under a different PER so this claim will be evaluated under 

that PER.

Dose for the remaining 93 claims was recalculated using the current revisions of the TBD 

as well as any other applicable documents. The resulting POC for all 93 claims was 

below 45%. 
Division of Compensation Analysis and 

Support

Program Evaluation Plan

Document Number: DCAS-PER-053

Effective Date: 3/4/2015 Revision No. 0 Page 3 of 3

NIOSH will provide the Department of Labor with the list of all the claims evaluated under 

this PER. Since none of the claims would now exceed a POC of 50%, NIOSH will not 

request the return of any of these claims.